Cementing machine



1,647.235 Nov. 1, 1927. H LEWIS CEMENTING 'MACHINE Filed April 8, 1925 2 sheets-Sheet 1 INVENTOR HARRY F. LEWI5 1 927 H. F. LEWIS CEMENTING MACHINE Filed April 8, 1925 2 sheets-Sheet 2 lNVENTOR HAR RY F. LEWIS U! Hi5 ATTRNEY Patented Nov. 1, 1927.

UNITED STATES PATENT OFFICE.

HARRY F. LEWIS, OF HAMDEN, CONNECTICUT, A SSIGNOB TO THE L. CANDEE 80 COM- PANY, 01' NEW HAVEN, CONNECTICUT, A

CORPORATION OF CONNECTICUT.

cmunnrmo MACHINE.

Application filed April 8, 1925. Serial No. 21,565.

This invention relates to a cementing machine, more particularly to a machme for. cementing the edge portions of sheet material, such as the bottoms of shoe 11 pers.

In the making of composite ru ber and fabric footwear having fabric uppers 1t is necessary to cement the bottom edge of the upper where it is. turned over and-secured to the insole. Prior operation has been performed manually. As an example of the manner in whlch this operation is performed, in cementing the uppers of arctics or gaiters the operator disposes a number of uppers in superposed relation with the lower edges successively projecting in a shingled arrangement, the projecting portion of each upper being of a width equal to that which is to be cemented.

While holding the uppers down the operator applies the cement over all the exposed edges in a single operation with a spreadlng tool or brush. While it would appear that this operation could be performed rather rapidly considerable expenditure of time and labor is required, as to secure a good union the cement should be driven into the'interstioes of the fabric to some extent and to properly do this requires some time. Even then it is impossible to get the desired amount of coment on the uppers in a single operation, and a second application of cement is necessary after the first has dried.

An objectof my invention is toprovide a simple, cheap and rapid machine for cementing sheet material, such. as the lower edges of shoe uppers. Another object is to provide a machine for frictionally applying the cement in order to secure proper penetration. Another object is to provide a machine" capable of applying the requisite amount of cement in a single operation.

Other objects will appear in the detailed disclosure in the specification and claims.

Without intention to limit the invention 45. otherwise than as required by the prior art,

the same consists broadly in providing a rotary device cooperating with a table or support to feed the work, which device also cooperates with a rotary cementing device rotating in o posite direction and-at a higher speed to ictionally apply a coating of cement of the desired extent.

For a detailed disclosure of the invention to my invention this reference is had to the accompanying specificatlon and drawings, in'which latter,

1 is a front elevation of the machine;

F g. 2 is a side elevation thereof;

Fig. 3 is an enlarged detail perspective of the cementing mechanism; and Flg. 4 is a sectional detail of the cementmg mechanism and cement supply means.

Referring to the drawings the numeral 1 designates a base on which is mounted the main frame 2 of the machine. Disposed adacent the frame is a column 3 on which is mounted an electric motor 4, the drive shaft of which carries a pulley 5 which through the belt 6 drives a pulley 7"secured on the main shaft 8 of the machine, which latter shaftis iournalled in the frame 2 and column 3. In order to provide for adjustments of the belt 6 the base 9 of the motor is mounted on a pivot 10 at one end, and by means of an adjusting screw 11 'the opposite end of the base may be raised to thereby tighten the belt as shown in Figure 1. A switch 12 mounted on the column 3 controls the motor. It is obvious, howeve that any other suitable form of drive for the machine may be employed.

The shaft 8 extends through to the front of the frame 2 and has secured thereon a cementing roll or wheel 13, a portion of the periphery of which is enlarged and knurled as shown at 14. A cement receptacle or. trough 15 encloses the lower portion of the cementing wheel 13 and is detachably secured to the frame 2 by means of the pivot bolts 16 and wing nuts'17. A cement tank 18 is disposed in inverted position on the frame 2 and has fixedly secured to its neck a flanged outlet ring 19. which ring is re- 1 movably secured to the frame 2 of the machine by pivot bolts 20 and wing nuts 21 (F1gs. 1 and 2). The flow of cement from the tank 18 is controlled by a flap valve 22 operated by the lever 23, and the cement issuing from the tank flows down an inclined channel 24 in the frame to the trough 15.

A work table 25 is secured to a bracket 25 mounted on the frame, which table is provided with an opening 26 throughwhich the upper periphery of the knurled portion 14 of the cementin wheel slightly projects. This table .is relatlvely small, and where a.

upwardly inclined and is also transversely of shaft 36 is mounted a work wheel designated generally by the numeral inclined with respect to the length of the guide (see more particularly Fi res 1' and 3). The guide is provided wit a slot 32.

through which projects a screw 33 for holding the -guide in adjusted position.

An overhanging arm' 34 is plvotalfly con nected to theframe 2 at 35., and journalled in the arm is a shaft 36, on the rear end of which is disposed a gear 37 which is driven through an intermediate gear 38 from a gear 39 on the main shaft 8. At the o posite end eed roll or 40. This wheel has an enlarged knurled porward movement table and cementingwheel may be secured tion 41 which cooperates with the work table" '25 immediately adjacent the upper projecting peripheral portion 14 of the cementing wheel to feed the work, and-the feed wheel, 40 is also provided with a reduced portion 42 which cooperates with the c'ementing wheel in the cementing operation. The gear-'-v ing is such that the cementing wheel is driven in a direction opposite was; of the feed wheel and at a peripheral about two and one-half times greater. 1 Attached to the pivoted overhanging arm ;34 is a pull rod 43 which can be operated by means of. a foot .treadle'orother device; not shown, to urge the feed wheel 40 downwardly into" cooperative relation with the table 25 and cementing -wheel. 13.v A coil spring 44 is disposed around the pull rod 43 and bears against the frame 2 and-a collar 45 secured on the rod, to thereby'resi'liently urgethe arm 34 and feed wheel-'40-upwardly operative positionr secured in the:franae2; beneath the arm (I-is an adiustable jto screw 46 (Figure'il which limits thejdo 'wn V hejarm .34, and wheel-.--40;Iand-b I Tjnstr'nent of'the' screw proper spac'ingpi. heifeedwheel andthe' for difierent 9f material.

.In operation; cement s supplied to trough 15, andthe-iguide 25 and flop-screw" 146 are properlyadjusted -for the article cemented *The operator then feeds the edge 01 the upper .or other articlebeneath the'in clined portion 31 ot'the guide and between.

the feed andcernent'ing wheels. 7 Due to'the cooperation of the-knurled portion 41 at the h feed wheel and the' table 25' the w'ork' iglon'g at the desired. speed, and at the same timethe knurledportionHertha-cementing1 p y I with seid cementingwheel and the table a h l whichis rotatingin an oppo it H hftheAmatenalcooperatee-witlrthe single operation. ,On account 0 p "of themachine and the eficien't manner in t'icular operation tionally-apply acoat 01E cement to the edgev of the upper. By reason of thiskopposite movementvof the two wheels the cement is thoroughlyfrictioned or r'nbbed in and at the same tlme s'uflicientcement is a plied in a the speed which the'cement is a plied the operation canbe performed muc more rapidly and more erfectly than by hand Byreason of the, etachable. connection of the cement .itrough 15 it can be easily removed for clean mg or-for attention to the cementing wheel.

' It will be seen from the above that a simple, ra id, easily cleaned and 'elficient machine has 'heenprovided for performing the cementing operation and thata very thoroughlfiy cemented article is secured. While a speci c embodiment has been shownand described it is obvious that with the detailed disclosure numerous modifications willsug-- gest vthemselves to those "skilled in' the art,

andit also be obvious that the machine lS not l1m;ted ;in idts application to the par escribed, since it may be:

-;used anemia withother materialsthan rubber-cementian lnconnection with many ether e s-thiiea eeupfi r Therefor'ei'it. iisnotdesired that the inventhe appended iclaims t .descrl l mi dotherwisefthan as set forth in bed invention what Iclaimandde re-to protect by Letters Patmeans therefor; a work table, and anoppose work feedwheel directly coo eratin'g with v said first wheeland table and aving its periphery rotating at a lower peripheral speed :inv an opposite directionto the adjacent peripherylofsaid first wheel.v 4

a 2. 2A cementing :machinef'comp table, "a ,jcementing wheel: ma t an an i can driven jworkfeedg t the-latter, il adjoining suriaoes of the ark a ejecting aho work table, a, cementingwheel projecting thereabove a differentially and oppositely driven ork Iced wheelhaving portions of difiere diameters. cooperating respectiveliy theoementing wheel.

ae'ent theflatter', and-means formpving the ren l operatin 'wit T I viiththififi 168d;

work feed wheel to and from operative position.

5. A cementing machine comprising a work table havin an opening t erein, a cementing wheel isposed in said opening, means for supplying cement to said wheel, and a work feed wheel cooperating with said table to feed the work in a direction opposite to the peripheral movement of the cementing wheel.

6. A cementing machine comprising a work table having an o ening therein, a cementing wheel having a urled portion projecting through said opening, cement feeding means, and a work feeding wheel havin -a knurled portion cooperatin with said ta J16 adjacent the cementing wieel to feed the work.

7. A cementing machine comprising a cementing wheel, a work table adjacent, the same, a work feed wheel relatively bodily movable with respect to the table, and means for bringing said feed wheel into coo erative work driving relation with the tab e adjacent the cementing wheel.

8. A cementing machine comprising a comenting wheel, a work table adjacent the same, a pivotally supported work feed wheel, resilient means urging the feed wheel away from the table, manually operable means for bringing the feed wheel and table into co 0 rative spaced driving relation at one side 0 the cementing wheel, and stop means for positively-limiting the operative spacingof the table and work feed wheel.

9. A cementing machine com rising a frame, a cementing wheel projectlng later all therefrom, a cement receptacle removab y attached to the frame around said wheel, a work table surrounding the'upper periphery of said wheel, and a work feed table surrounding the upper periphery therei of, a work feed wheel cooperating with the table adjacent said cementing wheel to feed the work, and a work guide in advance ofthe feed wheel.

11. A cementing machine comprising a.

knurled cementing wheel, means for supplying cement tothe lower portion thereof a work table having an opening through which the ,upper portion of said wheel projects, a-

pivotally mounted work feed wheelhaving a portion cooperating with the cementing wheel and an enlarged knurled portion co operating with the table, the periphery of said work feed wheel being differentially and oppositely driven with respect to the adjacent periphery of the cementing wheel means urging the work feed wheel out o operative position, and manual means for moving it to operative position.

Signed at New Haven, county of New Haven, State of Connecticut, this 3rd day of.

April, 1925.

HARRY F. LEWIS. 

